Re: [PATCH v2] gpio: siox: explicitly support only threaded irqs

[Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>]

On Wed, Sep 9, 2020 at 12:30 PM Uwe Kleine-König
<u.kleine-koenig@xxxxxxxxxxxxxx> wrote:
>
> On Wed, Sep 09, 2020 at 11:43:24AM +0200, Bartosz Golaszewski wrote:
> > On Mon, Sep 7, 2020 at 5:32 PM Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> wrote:
> > >
> > > The gpio-siox driver uses handle_nested_irq() to implement its
> > > interrupt support. This is only capable of handling threaded irq
> > > actions. For a hardirq action it triggers a NULL pointer oops.
> > > (It calls action->thread_fn which is NULL then.)
> > >
> > > Prevent registration of a hardirq action by setting
> > > gpio_irq_chip::threaded to true.
> > >
> > > Cc: u.kleine-koenig@xxxxxxxxxxxxxx
> > > Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
> > > ---
> >
> > Could you add a Fixes tag? This looks like stable material.
>
> Ah, we talked about this in the v1 thread---tglx and I agreed we want
> it. That's:
>
> Fixes: be8c8facc707 ("gpio: new driver to work with a 8x12 siox")
>

Thanks, now queued for fixes.

Bartosz